Hollow brick or tile molding machine



25, 1951 2 sheets-sheet 1 L., FRANDSEN HoLLow BRICK 0R TILE MOLDING MACHINE Filed Ooi.

May 2, 1933.

L. FRANDSEN May 2, 1933. I

TILE MOLDING MACHINE HOLLOW BRICK OR Filed Oct. 25, 1931 2 Sheets-Sheet 2 llatclentecl May 2, .19.133

* 'UNITI-5D :STATES f y f 1,906,744. f

PATENT gol-r-ucf; g

immun, ory Los ANGELES, i cALIisonNIA HOLLOW Baron .on TILE MoLDING MACHINE I i y Application med cameras, `1931. lserial Nb. 571,038.

My invention relates to a machine for molding--hollowbrick or tile and the machine herein illustrated and describediis an improvement on a similar machine that forms 5 the subject `mattei' of my co-pendin'g applicationV forUnited States Letters Patent filed March 19, 1929,' Seria-l Number 348,186 Theprincipal'objects of my present iny Vention are7 tovgenerally improve upon and 0 simplify the construction of the machine dis'- c to ' `'der serves Aas a support for interchanging blocks that receive the-endsof` the core anclosed in my co-pending application and to provide an improved" construction wherein the anchors rfor the cores that extend partially through the mold or dieare located-v Wholly within the mold housing and the latter being hinged to a material deliverythroat in order that it may be readily opened toy give convenientfaccess to the core anchors,` cores and theV mold or die `into which' the cores project 1 Further -objectsfof my invention are,` to

generally n improve upon and lify the construction of lthe molding mac inedisclosed in my aforesaid application forpatent, to construct the mold housing iwith a shoulder yadj acent to its receiving end7 which shoulchors, further,` top rovidemolds ori dies that are removably positioned withinv the `mo1d housing in order f that hollow brick and tile yof varying sizes? and shapes may be produced and' further, toV arrange in the outlet end of the mold housing a removable external nishing die.y 'Y y further object of my invention is, to

vprovide an adapter that may be readily .po-

sitioned between the discharge end of the clay'or mud mixing machine and the housing to which the core and mold carrying member is hinged so thatby reversing the adaptery my improved apparatusl may be utilized with brig. I1 is a veraci iongaudinal action taken through amolding machineof my improved construction and which machine is provided with a single. core.

Fig. 2 is a horizontal-section taken onfthe 55 line 2 2 of'Fig. 1.

Flg. Sis across section ltaken-on the line e-aof Fig. 1.3 l

- `Fig. 4 is a vertical longitudinal section I taken through the center of a machine of my 6 improved construction and which' is provided with a plurality of cores.` y L f Fig. "5 is a horizontal section taken on the "line 5-5 of Fig. 4. y

Figr is a front elevational view of the 65 `form of machine illustrated in Figs. 4 and 5.

Fig. 7 is a sectional View of the adapter formmg a part of my invention.

Figsf8fand 9 are perspective `Aviews of blocks that are removably positioned'inthe 79 receiving end of the mold or die housing.V Referring by numerals to the accompanying drawings'which illustrate a practical embodiment ofmy invention7 10 designates the vdischarge end of a machine of the standard type and whichis used'for mixingclay Aor n iudthat yis'to be :shaped into hollow brick 'or tileand detachably connectedto the discharge end of said machine is a'` substantially rectangular housing 11 having a tapered 's throat 12, that `receives thermixed clay or mud from the discharge end of thermachinelO.`v Connected by suitable hinges 13 to one side ofthe forward end of housing 11 is? aVV sub- '8 lstantially rectangular hollow mold or die housingg14 and formed in the end thereof' that-is immediately adjacent to .the end of the housing'll, is a recess 15, at the bottomof which isl formeda shoulder' 16 that extends 90 entirely around the housing. f f v Suitable means.,v preferably'a boltr 17, ymay be `utilized vfor securingthe innerend A'of l housing 14 tothe end of housing 111 onthe side opposite from the hinges and thus when the housing 14is closed against the end of housing 11 it constitutes an extension thereof. Y. Y l

Removably upon the shoulder-16,` is a thin plate' 18 of;

seated'in the recess 15, directly 10h metal, provided with a centrally arranged opening 19, and positioned against said plate and lilling the recess 15, are blocks 2O of Wood of such thickness that their inner edges coincide with the edges of opening 19 in plate 18.

Formed in the inner faces of the members of an oppositely disposed pair of' these blocks 20, are rectangular notches 21 that are adapted to receive the ends of a horizontally disposed core anchor 22.

This core anchor 22 and the core 23, that is carried thereby, is practically identical in construction with the core anchor and core that is disclosed and claimed in my hereinbefore mentioned co-pending application Serial No. 348,183, and said anchor and core are provided with fluid circulation ducts 25 that communicate with a duct 26 that is formedA in the center of one of the blocks'2() and which last mentioned duct communicates with the duct 27 formed in housing 11, and

which latter receive fluid from a, suitably arranged supply pipe 28s Removably positioned within the housing 14, is a mold or die 29 provided on its inner end with an outwardly presented flange 30 that bears directly against plate 18 and the opening through said mold or die gradually decreases in sise toward its outer end.

in order to strengthen and reenforce this mold or die and to retain the same firmly within the housing 11i, longitudinally disposed ribs 31 are formed on the externalfaces of said mold or die and the outer edges of these ribs bear directly against the inner faces of the housing 11i.

Detachably secured in any suitable manner to the outer end ot' housing 14, is a plate 32 inthe center of which is formed an opening that isl surrounded by an outwardly project- Vingflange and removably,positioned between the inner tace of this plate 32 and the outer mold or die 29, is a plate 34;, provided with a centrally arranged opening that coincides with the open end of mold or die 29 and surrounding this opening is an outwardly projecting flange 35 that lits against the flange 33 on plate 32.

This plate 34; and flange 35 constitute a finishing die for the extruded material and if' desired the face of flange 35 may be provided with longitudinally disposed grooves or ribs and which impart corresponding shape to the external surfaces of the brick or tile that discharges from the mold or die.

The mold or die is arranged so that it discharges the hollow brick or tile directly unto an endless conveyer such as 36.

It desired a lining 37 of metal may be removably positioned within throat 12 of housing 11 and the small end of this lining coincides with and lits directly against the faces of the blocks 20 that are positioned in the recess 15.

The form of apparatus heretofore described is especially designed for forming hollow bricks or tiles having a single longitudinally disposed opening and the construction illustrated in Figs. 4, 5, 6 and 9 is designed for producing bricks or tiles having a plurality of openings.

Where the latter form of brick or tile are produced, the removable lining 37 Within throat 12 is dispensed with and relatively thin blocks 38 are arranged within the recess 20 and the inner 4faces of the opposite members of apair 'of these blocks are provided with notches or recesses 39V for the reception of 4he ends of the core anchors Ll0, the latter being practically lidentical in construction with the core anchors 22 with the exception that each anchor aOcarries a pair of cores el that are identical in construction with the cores 23.

Removably positioned in the housing 14 is a die or mold 42 and removably located at the discharge end of the latter is a finishing die 43 that is practically identical in construction With the finishing die 34;-35, but having a larger discharge opening.

, In order to enable my improved molding machine to .be Yreadily associated with clay or mud mixing machines of different sizes,

an adapter of the type disclosed in Fig. 7

through throat 12, thence through the opening between the blocks 2O around anchor l22 and thence through the die or mold 29 around the core 23 and in thus passing through the die'or mold and around the core, the plastic material is given the proper shape Vand the shaped material i'inally discharges through the finishing die 34-35 and passes into the endless carrier 36.

During the passage of the plastic material through the die, the necessary lubrication is provided by Water that passesy from supply pipe 28 through ducts 27 and 25.

When it is desired to change the shape of the brick ortile, housing 11i may be readily swung on the hinges 13 to one side so as to permit blocks 20, mold or die 29, core anchor 22 and cores 23, to be easily and quickly removedfrom the housing 19 and replaced by .other parts which give different external andK y Vshapes and sizes may be readily produced.

with a different number of `core anchors and cores, hollow bricks or tiles of different By removing plate 33 and finishing die 34, the main formingdie 24 may be readily removed from the housing 14 and a die of different shape inserted, thereby. eectin a 1 vmaterial saving of timeland labor inci ent to the interchanging'of ydiesl andwhen such operation iscarried out it is not necessary to removethe bolts 17 and swing the housing 14 outwardly upon hinge 13. Thus it will bev seen that I haveprovided i a hollow brick or tile molding machine that f is relatively simple in construction, inexpensive of manufacture', capable of `being readily converted'so as to produce finished products of diferentsizes and shapes and which machine is veryeffective in performing kthe functions for which it is intended.

It will be understood that minor changes in the size', .form and construction of the various parts of kmy improved hollow brick yor tilemolding machine may be made and substituted for those lhereinl shown and dej scribed without departingffrom the spirit of j my invention, the scope of whichis set forth j in the appended claims. I claim as my invention: j 1. In a hollow brick or tile molding machine, the combinationwith a housing provided with a throat, of a housing hinged to said `first mentioned housing, said hinged housing beingprovided inv its 'end adjacent j to the end of the first mentioned housing,

positioned withinsaid hinged housing and a finishing die removably positioned inthe endof said hinged housing and surrounding the open` end of said removable die.

n 7. Ina hollow brickor tile molding ma-v chine, a housing provided with ay throat, a die housing hinged to said first mentioned hous-v ing and provided adjacent to its hinged end with an internal shoulder, a plurality ofV blocks removably arranged within said die housingandresting'upon said shoulder, a

core anchor supported by a pair of said blocks and acore projecting from said anchor into said housing.

v8. A hollowbrick or tile molding machine as set forth in claim 7 and with an open ended die removably positioned V*within the die housing to the rear of the blocks therein.

9. In a hollow. brick or tile moldingmachine, a hinged die housing, a die removably positioned within said housing and longitudinally disposed reenforcing ribs'formed on,

the exterior of said die. e f

10. In a hollow brickor tile molding machine, a mold housing, afplura'lityy of blocks removably positioned in one end of said housing, a core anchor detachably supported by a f pair of said blocks, aY core projecting from said anchor, a die removably positioned withy in said housing and surrounding said core and longitudinally disposed-reenforcing ribs on the exterior of said die. Y

f In testimony whereof, I aliiX my signature.

y LABS FRANDSEN.

witha recess, blocks removably. arranged in #said recess, the' inner faces of certaln offwhich blocks are provided with-notches, a core anchor having its ends seated in the notches l y finishing ldie arranged within said housing at the end of said removable die.

4. In ahollowbrick or tile molding ma-f chine, a housing provided with a throat, a die r housing-hinged to said first mentioned housing, a series of rblocks removably positioned the dischargeend of the throat, a core anchor supported by a pair of said blocks anda core projecting from said anchor. Y

, 5. fA hollow brick or tile molding machine as set forth in claim 4,and said blocks, core vanchor rand core being provided with lubricating fluid circulation ducts. a

y6. A hollowbrick or tile molding machine as set forth in claim 4, with adie removably in 4ih-e end of the hinged housing adjacent toV 

